An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Betriu A, Heras M, Sanz G.Betriu A, et al. Among authors: heras m.Rev Esp Cardiol. 1987 Jan-Feb;40(1):3-7.Rev Esp Cardiol. 1987.PMID: 2950574Spanish.No abstract available.
Sitges M, Bosch X, Sanz G, Heras M, Miranda F, Anguera I, Sambola A, Betriu A.Sitges M, et al. Among authors: heras m.Rev Esp Cardiol. 1998 Sep;51(9):732-9. doi: 10.1016/s0300-8932(98)74816-x.Rev Esp Cardiol. 1998.PMID: 9803799Free article.Spanish.
Heras M, Sanz G, Betriu A, Mont L, de Flores T, Navarro-López F.Heras M, et al.Eur Heart J. 1990 May;11(5):441-6. doi: 10.1093/oxfordjournals.eurheartj.a059727.Eur Heart J. 1990.PMID: 2354705